>tr|A0A0U1RNG3|A0A0U1RNG3_MOUSE Polymerase (RNA) I polypeptide A (Fragment) OS=Mus musculus OX=10090 GN=Polr1a PE=4 SV=1 XLLINIIPEDYAPLNLSGKAKIGSKAWVKEKPRPIPDFDPDSMCESQV